Know every webhook landed. Stop writing the plumbing to prove it.
Every plan shows you what arrived, what was delivered, and what failed — and why.
Slashbin Free
Put one real integration through Slashbin.
$0/month
No credit card required10,000 webhooks included
Free forever — upgrade when you outgrow it
- 1 data stream, 1 destination per data stream
- 3-day history — retry anything from the Dead Letter Queue for 3 days
Not included: replaying many webhooks at once · Klaviyo · templates · OpenAPI export · AI mapping assistant
Start FreeSlashbin Lite
Your first production integration.
$10/month
14-day free trial15,000 webhooks included
$0.003/webhook (15,000–100,000)
$0.0014/webhook (100,000–500,000)
$0.0005/webhook after 500,000
- Up to 3 data streams, up to 2 destinations per data stream
- Fix history — replay a whole window of webhooks through your latest mapping. Keeps 7 days.
- Start from a template — adopt a ready-made model (e.g. Shopify orders) and see when the template moves on.
- Klaviyo without code — map webhooks to native Klaviyo events.
- Typed clients from your models — export an OpenAPI spec and generate SDKs.
- AI mapping assistant — it reads your sample payloads and proposes the mapping.
Most Popular
Slashbin Pro
The second integration, and every one after.
$20/month
14-day free trial50,000 webhooks included
$0.0015/webhook (50,000–100,000)
$0.0007/webhook (100,000–500,000)
$0.00025/webhook after 500,000
Everything in Lite, plus:
- Invite your clients — They see their data, their deliveries and the bill without you, and can act when you're not around.
- 50,000 webhooks a month included
- 30 days of history and replay — Lite keeps 7 days.
- Unlimited data streams — so each client gets their own.
- Up to 10 destinations per data stream — Klaviyo included.
The Free plan is free forever and needs no credit card. Lite and Pro include a 14-day free trial; a credit card is required to start one, and you can cancel anytime during the trial.
Available on every plan
- Deliver to your own endpoints — Send transformed events to any HTTPS endpoint you control. How many you can add per data stream depends on your plan.
- See every delivery — Every webhook, to every destination, with its delivery status. You don't have to guess whether it worked.
- Know when something didn't arrive — Failures go to a Dead Letter Queue with a count in the sidebar, and you get a daily digest email if anything is waiting.
- Signatures verified for you — Shopify, Stripe, Square, GitHub, Typeform, VideoAsk, LinkedIn and QuickBooks are checked on the way in. Everything you receive from us is signed on the way out.
- Retries you didn't write — Per-destination backoff and a circuit breaker, so one slow endpoint never holds up the others.
- Only the data you want — Map the payload in the Transformation IDE and filter the noise before it is delivered.
- Duplicates handled — A retry never re-sends an update that a newer one already replaced.
- Drivable by your agent — REST API and CLI, with the OpenAPI contract readable without a key.
Frequently asked questions
- Is there a free plan or a free trial?
- Both. The Free plan is free forever and needs no credit card at all. Slashbin Lite and Slashbin Pro each include a 14-day free trial; a credit card is required to start one, but you can cancel any time before the trial ends and you won't be charged.
- How does billing work?
- Slashbin Lite and Slashbin Pro are billed monthly. Each includes a monthly webhook allotment, and usage beyond the included count is billed at the graduated per-webhook rates shown on that plan's card. No hidden fees, no seat licenses. The Free plan is never billed: its monthly allowance is a ceiling rather than a meter, so once you reach it, further webhooks are refused at ingest until the allowance resets — upgrade to Lite or Pro before that point if you need them delivered.
- Can I cancel anytime?
- Yes. Lite and Pro subscriptions can be cancelled at any time from the Console billing page, and you keep access through the end of the period you've already paid for. The Free plan has no subscription and no billing period, so there is nothing to cancel — leave the account idle or delete the data stream.
- Can I switch plans?
- Yes. You can upgrade or downgrade at any time from the Console billing page. Moving between Lite and Pro is prorated automatically by Stripe. Downgrading to Free ends the paid subscription instead — there is nothing to prorate — and the Free plan's limits apply once the period you've already paid for is over.
- Do you offer annual pricing or enterprise plans?
- Not yet. Monthly self-serve plans are what's available today. Contact us if you have higher-volume or enterprise requirements.